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Reliability-Based Assessment of Structural Safety of Regid-Frame-Typed Segmental PSC Box Girder Bridges Erected by the FCM during Construction  

Cho, Hyo-Nam (한양대학교 토목.환경공학과)
Joo., Hwan-Joong ((주) 교량과 고속철도)
Park, Kyung-Hoon (한국건설기술연구원)
Moon, Kyung-Ho ((주) 교량과 고속철도)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.6, no.1, 2002 , pp. 131-140 More about this Journal
Abstract
In this paper, a limit state model based on the analysis of structural behavior of segmental prestressed concrete box girder bridges and reliability-based safety assessment method are proposed for the bridges erected by free cantilever method. Strength limit state models for prestressed concrete box girder and rigid-frame type columns are developed for a structural safety assessment during construction. Based on the proposed limit state models, the reliability of the bridge is evaluated by using the Advanced First Order Second Moment method. The proposed model and method are applied to the Seo-Hae Grand Bridge built by FCM in order to verify its effectiveness in the safety assessment during construction of the kind of bridges. The sensitivity analyses of the main parameters are also performed in order to identify the important factors that need to be controlled for the safety of the bridges during construction.
Keywords
FCM; Structural Safety; Reliability; Bridge during Construction; Sensitivity Analysis;
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